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Harrison, L. C. in addressee 
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From:
Charles Robert Darwin
To:
Lucy Caroline Wedgwood; Lucy Caroline Harrison
Date:
5 Jan [1872]
Source of text:
Cambridge University Library (Add 4251: 331)
Summary:

Asks her to probe worm-holes on grassy slopes with a knitting needle to ascertain whether they come out at right angles to the slope or to the horizon.

Contributor:
Darwin Correspondence Project
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From:
Charles Robert Darwin
To:
Lucy Caroline Wedgwood; Lucy Caroline Harrison
Date:
21 Jan [1872]
Source of text:
Cambridge University Library (Add 4251: 332)
Summary:

Thanks for observations on angles of worm-holes on slopes. William Darwin is observing at Stonehenge. She is worth her weight in gold.

Contributor:
Darwin Correspondence Project
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